The image shows DQS-40.5 SF6 Gas Insulated Ring Main Unit. Final configuration, colour and attachments are confirmed at order stage — please request current photos before purchase.
DQS-40.5 is a SF6 gas insulated ringmain unit for the secondary distribution network.DQS-40.5 is compact designed andsuitable for most switching applications in PV power station ,wind farm andother 36-40.5 kV distribution networks. DQS-40.5 is a completely sealed systemwith a stainless steel tank containing all live parts and switching functions.DQS-40.5 is fully comply with the IEC 62271-100, IEC 62271-200 and GB Standards and TÜV Certification.
Productcharacteristics
1. Adoptingdeep penetration laser welding and Helium leak detection process to ensure gastank tightness.
2. Modulardesign, permutation and combination according to the design scheme, meet avariety of distribution requirements.
3. Compactdesign ,available in wind turbine tower andbox-type substation applications.
4. Pressure-operatedload break switch,strong arcing ability。
5. Long operationallife，highreliablity;
6. Simple andeffective interlock can prevent the mal-operation.
7. Internal arccontainment 20kA 1s, both in gas tank and cable compartment.
Why buyers in this range contact us
- 34 machines across 7 product groups in Electric Equipment
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General specification
| Item | Load switch(C) Unit |
|---|---|
| Rated voltage | 40.5 kV |
| Rated current | 630 A |
| Rated power-frequency withstand voltage(1min) | 95/118 kV |
| Rated lightning impulse withstand voltage | 185/215 kV |
| Rated frequency | 50 Hz |
| Rated active load breaking current | 630 A |
| Rated short-circuit breaking current | On request kA |
| Rated short-circuit making current | 50 kA |
| Transfer current | On request A |
| Rated short-time withstand current (3s) | 20 kA |
| Rated peak withstand current | 50 kA |
| Gas leakage rate | < 0.1% |
| Protection degree: Gas tank/cabinet | IP67/IP4X |
Specifications are reproduced from the manufacturer's published data for this model; final configuration is confirmed on the quotation.
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